Democrat presidential nominee Hillary Clinton is set to see a significant win on 8 November, according to a forecast model that has correctly predicted every election for the last 36 years.

The prediction from Moody's, which shows Clinton taking 332 Electoral College votes to Trump's 206, is in contrast to the latest national polls, which show Trump has experienced a bump in numbers over the past week.

His increase, which puts him almost on an even keel with his rival Clinton at 47 points to her 48 points in a head-to-head poll by ABC/Washington Post Tracking, comes after FBI director James Comey announced the bureau would be reopening its investigation into Clinton's use of a private email server.

The timing of the investigation has been criticized by Clinton's campaign and allegedly went against the wishes of the justice department, which has unwritten policy of not taking investigation actions so close to an election, so they are not seen as influencing its outcome.

But according to the Moody's predictor, which has accurately predicted every election since its establishment in 1980, the numbers will not be close, with Clinton expected to have an easy win.

But an economist with Moody's warned against placing too much weight on election predictions, particularly due to the unpredictable way the election has played out thus far.

Dan White told The Hill: "Given the unusual nature of the 2016 election cycle to date, it is very possible that voters will react to changing economic and political conditions differently than they have in past election cycles, placing some risk in the model outcome, particularly state-by-state projections.

"As much as economists would like to believe that economics have the final word in elections, in most states politics still matter more.

"Most states tend to vote consistently Democrat or Republican, regardless of whatever other forces might be at play."